The tower ________ over 300 metres in height．

is measuring

is measured

measures

is being measured

Mr．Smith is the only man ________ I can turn for help．

up whom

to whom

that

who

The flu is believed ________ by viruses that like to reproduce in the cells inside the human nose and throat．

causing

being caused

to be caused

to have caused

I don’t know the restaurant, but it’s ________ to be quite a good one．

said

told

spoken

talked

These films ________ until tomorrow morning．

can’t develop

aren’t developing

won’t developed

won’t be developed

The ________ boy was last seen ________ near the East Lake．

missing; playing

missing; play

missed; played

missed; to play

Students should learn their lessons well, but ________ they should learn to behave well．

above all

at all

in all

after all

Astronomers estimate ________ called the Pleiades in the constellation Taurus is 415 light years away from Earth．

that a loose cluster of stars

a loose cluster of stars is

that is a loose cluster of stars

there is a loose cluster of stars

________ touching in O Henry’s stories is the gallantry with which ordinary people struggle to maintain their dignity．

Most is

It mostly is

Is it most

What is most

Direct information on the chemical composition of the Moon became available in 1969 ________ of the first Apollo mission to land on the Moon．

with the return

returning

when returned

and the return